Shirtless Kellan Lutz Covers Men's Health

The 25-year-old Twilight stud realized the power of his abs during an eighth grade graduation party at a water park. “Before then, I never knew abs were attractive,” he says. “Where I grew up in Arizona, you would never see anyone without a shirt on at school. But when I took off my shirt, all the girls were like, ‘Oh, look at your abs!’ And I was like, ‘Yeah!’”